Terry-pile-fabric loom



July 27, 1926.

E, H. RYoN TERRY PILE FABRIC LOOM Filed Nov. 6, 1924 2 Sheets-Sheet l F'iladl Nov. 6,

1924 2 Sheets-Sheet 2 I l /Nvuvmlf y n Z'Pm m f Pegg Patented July 27', i926.

Loon seams.

enrsi-ir orties.

'EPP-A H. RYON, 0F PASALDENA, CALFORIMA, ASSIGNOR TO CROMPTON o ILNOWLES, i WORKS, F" EVORGESTER, MASSACE'SETTS, A CORPORATION OF MASSACHU- Tnnnvrnnurnnnrc noon.

application filed. November cally released to permitthe pile yarn to move i lengthwise with rested te the eroi-led varrt .is customary ,to lay two .or more picks of fill-ing la short distance .behind the fell of the cloth and then .to give .the accunnilated picks an additional forward motion .at which time said piclisy grip the loose pile warp and move the saine forward with respect to the gronnd warp, the pile'warp bending transyersely of .the plane of the fabric t@ 'term loopelilly .present invention relates more par- `ticullarlyto mechanismsuited .to the `iormation of high terry pile, `and in the motion ,set forth herein lemploy `an eccentric some` s whatfsiinilar to that shown inl the Davidson IPatent #936,310 hut. actuatedl positively both :directions by' a sliding'rack l,driven by nieclienisrn very similar .toa hoX motion.

is ya more particular 'object of'my in- .ventionfto v.employ a motion `for the purpose vof moving `.the lay lto form pile, the bon motionbeing of'a nsual and well' lnown fform@and so adapted .that the operation of .the bones is not in the' least disturbed by Ithe additionoif .the means to forin the pile.

l `With these vand other lobjects in view whicl/hfwill appear as .the description ,proceeds, my invention resides in .the ,combinatlon and arrangement of parts hereinafter described and lset forth in `the claims.

In `the accompanying A.drawings wherein l have ,shown amy vinvention y,as 'appliedfyto .one panticular form of box motion,

F.ig. l is la side elevation of Va portion of `a loom having my invention applied thereto ,and showigigthe lay ,in thefextreme ,forward 1position `which it ,occupies at the time lof i forming pile,

Fig.v 2 is ya horizontal section on .line 2-2 ,0f ilis. l;

e, 1924. serial No.. 748,252.

Fig. 3 is a fragmentary detailed view showing the connector and lay with the latter shown in forward position when laying the picks priorto pile formation, and

i Fig. fl isA a section on line 4-4 of Fig. 1 looking in the direction of the arrows,

' Fig. 5 is a'horizontal section on reduced scale on line 5 5 of Fig. '1.

' In carrying` out my invention I provide a borg motion which is capable of operating twoloones more than areto be operated lwith the terry formingA mechanism, and in the form illustrated in the drawings I have shown a motion for four boxes connected to operate two boxes, the remainderV of the box motion being used to operate the terry mechanism.

lhe loom frame has journaled therein crank shaft ll and bottom shaft l2 which are connected by suitable gearing (not shown) to cause the same to rotate in opposite directions. Fixed to shaft l1 isv a gear 13 which mesheswith an equal gear lll secured to bevel gear 1 5, vsaid gear Y14 Aand hevel l5 'being loosely moiinted Von stud 16. A second bevel'gear 17 meshes' with the first named bevel'and is secured to'an upright shaft .l theupper end of which carries worm 19 placed to engage .worm gear 20 rigid Vwith chain cylinder 21. A; lever 22 is suitably' pivoted as at 23 to a fixed stud and has the ycater end thereof attached to a connector 2d which vextends downwardly.

Secnred `to bottom shaft 12 is a segment 25 whichmalres acomplete revolution'every second pick and cooperates with pinion 26 to move'the latte-r about stud 27. A disc is rigid with'the pinion 26 and has a'pivotal connection ,with the lower end of link `29 y'the upper end Aof which is connected as at 30 to `the box lever 3l pivotcd at 32. A lever 33 is pivoted to the stand 34 bolted or otherwise secured to box motion frame 35 and said lever has a horizontal arm 36 which may be connected to a lever (not -sliiown) controlled bythe pattern chain 37. A' depending erm'v 33y lengages a sliding4 member which `moves longitudinally of lthe shaft 27 to bring oneof two diametrically opposite lugs fO' and 4l, respectively, in the vpath of segment' 25. When vsaid segment engages one of Vthe'lugs, shazt't'2A will be given va semi-rotation link '2.9 will 'be moved eithei` to raise or lower stud 42 which has connection (not shown) with the boxes B.

In carri-ying out my improvements I make use of the lever 50 usually found on a box motion of the type shown herein, said lever being' pivoted on stud 50 and having` horizontal arm 5l which is attached to the lower end of connector 24 and having also a depending arm 52 having a finger which extends within groove 53 of slide 54 which is mounted on shaft 55. `Pinion 56 is keyed or otherwise secured to shaft 55 and is provided with opposite slots to receive the parallel arms 57 and 53, respectively, said arms having` lugs 59 and 60, respectively, which lie on opposite. sides of shaft 55 and rotate in spaced planes so that only one of them is in line with the teeth of the pinion at a time.

Fixed to the inner end of shaft 55 is a disc 6l carrying a. stud which affords pivotal connection for the upper end of the link G3. The lower end of said link is pivotally connected to a lever' 64 pivoted at 65 to a fixed stud and having a forwardly extending` arm G6 slotted as at 67. A stand 68 is bolted to the loom side and has journaled therein a shaft 69 which extends across the loom, said shaft having fastened thereto a lover 70 having a stud 71. which extends through slot 67. The shaft 69 has secured thereto spaced levers 72 which lie adjacent the loom side and one of which is shown in Fig. l. Each of the levers 72 is pivotally connected to the lower end of a lifter rod 73 the upper end of which is pivotally connected to a rack 74 see Fig. 5. Each lay sword has bolted thereto a guide 75 from which extend a pair of spaced ears 76 (see Fig. 4) between which the. rack 74 moves, said guide having tongue 77 on which said rack slides. The rack meshes with a gear 78 which has formed therewith eccentric 79 lying' between the pinion and one of the ears 76, The said gear 78 and eccentric 79 rotate on stud 8O which extends through ears 7 6. rl`he crank shaft 1l is provided with a crankSl which is attached to connector 82 the forward end of which has pivotal connection with the eccentric. Guide 75 is bolted or otherwise secured to the lay sword and as the gear 7 S is rotated the position of the stud will change with respect to the crank 8l and thereby effect also a change. in the position of the lay.

In order to actuate pinion 56 I secure to the bottom shaft 12 a pair of segments 83 and 84 which rotate in the same plane as the pinion 56. In the usual operation of a box loom the shuttle boxes will begin to move when the lay is about at bottom center and will finish their movement when the lay is approximately at top center, the boxes being approximately half through their motion at front center. Inasmuch as the terry forming mechanism must operate to throw the lay to its extreme forward position at front center it is necessary to advance said segments 33 and 84 so that they will be in position to actuate the pinion 56 somewhat earlier than would be the case if said pinion were functioning to control the position of boxes.

The disc 61 has lugs 86 and 87, respectively, which extend on opposite sides of the shaft. Stand 83 which is bolted to frame 35 and aifords a mounting for lever 50 has extending forwardly therefrom a stud S9 on which is pivoted a lock lever having spaced feet 91 and 92 which cooperate with lugs 86 and 87, respectively, to hold the pinion 5G and link 63 in position. Spring 93 serves to hold the feet against the lugs and permit the lock lever to be raised as the shaft 55 is rotated. In this way the rack is locked in its upper and lower positions.

Assuming that the loom is weaving a heading or border, the lay will need to be in extreme forward position and the eccentric will be in the position shown in Fig. 1, the slide 74 being down and the link 63 raised. The lever 22 and connector 24 will be in raised position so that the slide 54 is in inner position with lug 59 out of alignment with the segments 83 and 84. This relative position of the parts will continue so long as the heading is being woven but when it is desired to change to pile fabric the lever 22 will be lowered, the result of which will be to move lug' 59 into the path of one or the other of the segments 83 or 84 and as the segments continue to rotate the pinion 56 will be given a half revolution which will result in lowering the link 63 positively and a corresponding upward movement of rack 74 to move the lay to the position shown in Fig. 3. The pinion 78 will receive a half rotation and the stud 8O will be on the opposite side of the eccentric from that shown in Fig. l. The result of this is to shorten the distance between the lay and the crank shaft so that the reed will not move to the fell of the cloth on the next beat up. As the next segment approaches pinion 56 on the next pick it will find lug 60 out of its path and will pass without acting to rotate said pinion.

If a three pick terry is being woven, the parts will remain in this position until two picks have been laid with the lay in its rear ward range'of motion. During the laying of the third pick, however, the lever 22 will be raised by the pattern chain 37 and lug 60 will be moved into the path of the rotating segments and as these latter continue to rotate one of them will engage said lug 60 and pinion 56 will be rotated a half revolution. The result of this last motion will be to raise link 63 and move the parts to the Position shown .in Fie@ lv so that the Picks previously laid Slightly behind the fell 0f the cloth l`can be beaten to extreme forward position to form pile.v 1 have chosen herein to show my invention applied to the weav- 'ngyof s'o-called three pick terry and for that reason itis necessary to have a roll R on every third bar Vof that part ofi the chai-n which corresponds to the pile section of the .fabric but ,it will be readily understood that I am not limited to this particular type of weave since al roll- R co-nld be placed on every nurth bar should it be desired t0 weave four pick terry. It will be understood that therel is a rack 74; and eccentric 7 9 on each lay sword.

F rom the foregoing it will be seen that I have provided a terry forming mechanism of very substantial construction suiiiciently strong to stand all strains incident to the beating up of the pile and that I have provided for moving the eccentric which positions the lay positively in both directions and that the eccentric is furthermore locked in extreme positions. The lay is relatively heavy and cannot be depended upon to return to its rearward range of action under influence of a spring such as shown in the aforesaid Davidson patent, but the motion set forth herein insures the proper placing of the lay when in either range of action. Furthermore I have made use of a standard type of boX motion to accomplish these results. f

Having thus described my invention it will be apparent that changes and modifications may be made therein by those skilled in the art without departing from the spirit and scope of the invention and I do not Wish to be limited to the details herein disclosed, but- What I claim is:

1. In a loom, a crank shaft, a lay, eccentric connections between the lay and shaft to vary the relative position of the lay and shaft, and controlling means for said eccentric connections to actuate the latter positively in two directions, said means including a rack slidable on the lay in a direction transverse to the motion of the lay.

2. In a loom, a crank shaft, a lay, a connector for the crank shaft, an eccentric between the connector and the lay, and mea-ns to move the eccentric positively in both directions, said means including a rack slidable on the lay in a direction transverse to the motion of the lay.

3. In a loom, a crank shaft, a connector therefor', a lay, an eccentric located between the connector and the lay, means movable to two positions to move the eccentric positively in opposite directions, and additional means to lock said eccentric moving means when in either position.

4. In a loom, a crank shaft, a connector therefor, e ler, e .Sverd therefer, en @eeentric interposed between the connector and the lay, means to rotate the eccentric including a rack slidable longitudinally along` the lay sword, and means to actuate said rack.

In a loom, a crank shaft, a connector therefor, a lay, a sword therefor, an eccentric interposed between the connector and the lay, means to rotate the eccentric including a vrack slidable on the lay sword,v and means to actnate said rack positively in both directions.

6. In a loom, a crank shaft, a connector therefor, a lay, sword therefor, ,an Veccentric interposed between the connector and the lay, means to rotate the eccentric including a rack slidable on the lay sword, means to actuate said rack positively in both directions, and mechanism to lock said means in both positions.

7. In a loom, a crank shaft, a connector therefor, a lay, an eccentric interposed between the connector and the lay, a bottom shaft, a rotating member secured to the bottom shaft, and connections between the r0- tating member on the bottom shaft and the eccentric to move the latter by said rotating member, said connections including a race slidable relatively tothe lay, a pinion connected to the eccentric and meshing with the rack, and connections between the rack and the rotating member to move the rack positively in opposite directions as said member rotates.

8. In a loom, a crank shaft, a connector therefor, a' lay, an eccentric interposed between the connector and the lay to vary the position of the lay with respect to the connector, a bottom shaft, a segment gear fixed to the bottom shaft, a pinion adapted to be rotated by said segment, and connections between the pinion and the eccentric to move the latter as the pinion rotates.

9. In a loom, a crank shaft, a lay, an eccentric located between the crank shaft and the lay to vary the position of the lay with respect to the crank shaft when said eccentric is rotated, a bottom shaft, a toothed segment thereon, a pinion, connections between the pinion and the eccentric to cause the latter to rotate as the pinion rotates, and pattern controlled mechanism to connect the pinion to the segment as the latter rotates to cause rotation of said pinion.

l0. In a loom, a crank shaft, a lay, an eccentric interposed between the crank shaft and the lay to vary the position of the latter with respect to the crank shaft as said eccentric is rotated, a bottom shaft, a toothed segment fastened thereto and rotating therewith, a pinion, a crank rotatable with said pinion, and connections between the crank and the eccentric to cause the latter to rotate as the pinion rotates the crank.

ll. In a loom, a crank shaft, a lay, an eccentric located between the crank shaft and the lay to vary the position of the lay With respect to the crank shaft When said eccentric is rotated, a bottom shaft, a toothed segment carried thereby, a pinion adapted to be rotated by said segment, pattern controlled mechanism to establish operative driving connection between the segment and the pinion, a crank rigid With the pinion, a lever operatively connected to the crank at one end thereof, and means operated by the other end of the lever to rotate the eccentric when said lever is moved by the crank.

12. In a loom of the class described, a crank shaft, a bottom shaft, geared connections between said shafts, a lay, devices on said lay eifective to change the position of said lay with respect to said crank shaft, shifting shuttle boxes, a segmental gear fast on said bottom shaft, mechanism arranged to be driven b 'Y said segmental gear, a second mechanism arranged to be driven by said segmental gear, pattern surfaces to control both of said mechanisms, connections from said first named mechanism to said shifting shuttle boxes, and connections from said second mechanism to said devices.

In testimony whereof I'havehereunto affixed my signature.

- EPPA H. RYON. 

